.search_sort{
  li{
    float: left;
    width: 25%;
    background-color: #eee;
    a{
      font-size: 12px;
      color: #666;
      display: block;
      text-align: center;
      height: 30px;
      line-height: 30px;
    }
    &.active a{
      color: orange;
    }
  }
}
.lt_product{
  position: relative;
  .loading{
    width: 50px;
    height: 50px;
    border: 3px solid #006699;
    position: absolute;
    top: 100px;
    left: 50%;
    // transform: translate(-50%);
    animation:  running 1s infinite;

  }
  @keyframes running {
    from{
      transform: rotate(0deg);
    }to{
      transform: rotate(360deg);
    }
  }
}